War Strategy Algorithm-Based GAN Model for Detecting the Malware Attacks in Modern Digital Age

Malicious software (ransom ware) cyber attacks in frequency and severity, posing an increasingly serious threat to computer systems everywhere. Malware detection is a hot study area as several multiple computers, organisations, and governments have been affected by an exponential rise in malware attacks. Dynamic and static assessment of malicious characteristics and behaviour patterns is time expensive and useless in real-time malware detection, according to current technologies. It is becoming increasingly common for malicious apps to use polymorphic and adaptive techniques to rapidly modify their behaviour and develop a number of new malicious apps. In order to undertake an effective malware analysis, machine learning techniques (MLAs) are increasingly being used to create new malware varieties. This approach is time-consuming since it requires considerable feature engineering, learning and representation of features. Moreover the feature extraction process could be effectively eliminated by using advanced MLAs like deep learning. These methods have been shown to perform better with a biased training dataset, which restricts their practical application in real-time scenarios. A new improved approach for successful zero-day malware detection must be developed in order to eliminate biases and analyze these approaches autonomously.

Mild cognitive impairment (MCI) is a clinical condition characterized by a decline in cognitive ability and progression of cognitive impairment. It is often considered a transitional stage between normal aging and Alzheimer's disease (AD). This study aimed to compare deep learning (DL) and traditional machine learning (ML) methods in predicting MCI using plasma proteomic biomarkers. A total of 239 adults were selected from the Alzheimer's Disease Neuroimaging Initiative (ADNI) cohort along with a pool of 146 plasma proteomic biomarkers. We evaluated seven traditional ML models (support vector machines (SVMs), logistic regression (LR), naïve Bayes (NB), random forest (RF), k-nearest neighbor (KNN), gradient boosting machine (GBM), and extreme gradient boosting (XGBoost)) and six variations of a deep neural network (DNN) model-the DL model in the H2O package. Least Absolute Shrinkage and Selection Operator (LASSO) selected 35 proteomic biomarkers from the pool. Based on grid search, the DNN model with an activation function of "Rectifier With Dropout" with 2 layers and 32 of 35 selected proteomic biomarkers revealed the best model with the highest accuracy of 0.995 and an F1 Score of 0.996, while among seven traditional ML methods, XGBoost was the best with an accuracy of 0.986 and an F1 Score of 0.985. Several biomarkers were correlated with the APOE-ε4 genotype, polygenic hazard score (PHS), and three clinical cerebrospinal fluid biomarkers (Aβ42, tTau, and pTau). Bioinformatics analysis using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) revealed several molecular functions and pathways associated with the selected biomarkers, including cytokine-cytokine receptor interaction, cholesterol metabolism, and regulation of lipid localization. The results showed that the DL model may represent a promising tool in the prediction of MCI. These plasma proteomic biomarkers may help with early diagnosis, prognostic risk stratification, and early treatment interventions for individuals at risk for MCI.

Background/Objectives: The study aims to achieve two main objectives. The first is to reliably identify and categorize malware variations to maintain the security of computer systems. Malware poses a continuous threat to digital information and system integrity, hence the need for effective detection tools. The second objective is to propose a new incremental learning method. This method is designed to adapt over time, continually incorporating new data, which is crucial for identifying and managing multiclass malware variants. Methods: This study utilised an incremental learning technique as the basis of the approach, a type of machine learning whereby a system retains previous knowledge and builds upon the information from the newly acquired data. Particularly, this method is suitable for tackling mutating character of malware dangers. The researchers used various sets of actual world malwares for evaluating the applicability of these ideas which serves as an accurate test environment. Findings: The findings of the research are significant. We utilizing 6 different datasets, which included 158,101 benign and malicious instances, the method demonstrated a high attack detection accuracy of 99.34%. Moreover, the study was successful in identifying a new category of malware variants and distinguishing between 15 different attack categories. These results underscore the effectiveness of the proposed incremental learning method in a real-world scenario. Novelty: This research is unique because of the novel use of a tailored incremental learning technique for dealing with dynamic threat environment of malwares. However, with a new threat they cannot be so well adapted using traditional machine learning methods. On the other hand, the technique put forward in this paper facilitates continuous learning that can be modified to match different types of malicious software as they develop. The ability to evolve and adapt is an important addition to current cybersecurity practices that include malware identification and classification. Keywords: Cybersecurity, Malware Detection, Incremental learning

Millimeter-wave radar is widely used in intelligent vehicle infrastructure cooperative systems (IVICS) because of its long detection distance, high integration and less affected by weather conditions. The target recognition and classification technology based on millimeter wave radar is a research hotspot. However, traditional recognition methods require a complex feature extraction process. In this paper, a millimeter-wave radar classification method based on deep learning is proposed, which uses the ability of convolutional neural networks (CNN) method to automatically extract feature data, so as to replace most of the complex processes of traditional radar signal processing chain. It solves the four classification tasks of bus, cars, electromobile and pedestrians. Taking the selected feature data as the RV spectrum, a seven layer convolution neural network is built to classify the target. Compared with traditional machine learning methods, CNN greatly reduces the workload of feature engineering, and its classification effect is better than traditional machine learning methods. Then, from the perspective of redundancy of the convolution kernels, we simplify the CNN architecture. As a result, final classification accuracy of the CNN is 93.16%. After simplifying the structure of the CNN, the computational complexity and storage consumption of the network are reduced by 74.67% and 73.71%, respectively, while ensuring that the classification accuracy does not decline.

Epilepsy is a common neurological disorder that severely impairs the quality of life of patients. Accurate detection of epileptic seizures is crucial for diagnosis and treatment. This paper reviews the application of machine learning in epilepsy diagnosis, with a specific focus on two core tasks: classifying seizure types based on electroencephalograms (EEG) and detecting interictal epileptiform discharges (IEDs). Machine learning methods are mainly divided into two categories: one is traditional machine learning methods, such as support vector machines and random forests, which rely on manual extraction of EEG features. Although they exhibit stable performance on small sample data, feature engineering is complex and dependent on expert experience. The second is deep learning methods (such as CNN, RNN, and their variants), which can automatically learn the spatiotemporal features of EEG and have significant advantages in multi-type seizure classification, but they have high requirements for data quality and scale. In IEDs detection, although methods such as tensor decomposition can achieve high accuracy by integrating multi-dimensional information, they still face problems such as difficulty in distinguishing artifacts in template matching. Future research needs to optimize algorithm performance and address challenges such as data scarcity to further improve detection effectiveness.

The analysis of footprints to infer human characteristics and biometric information is a valuable tool in forensic investigation. Traditional methods rely primarily on physical measurements and observational analysis, which requires significant time, effort and specialized expert judgment. This study proposes a novel, automated, end-to-end approach to gender classification and stature estimation from footprints, using image analysis and traditional machine learning methods. Specifically, this we employ a image pre-processing techniques for Region of Interest extraction to segment foot prints in images and identify toe and heel exterior points through convexity and defectiveness points. The study utilized a dataset of 396 footprints from 33 participants (18 males and 15 females, aged 18-48 years, height range 148-182 cm). Hyper-parameter tuning via grid search optimization is employed and traditional Machine Learning (ML) models, including Logistic Regression (LR), Gaussian Naive Bayes (GNB), K-Nearest Neighbor (KNN), Decision Tree Classifier (DTC), and Support Vector Machine (SVM), are benchmarked for the task of both inferring gender, and stature. We specifically focus on traditional ML methods due to their relatively modest training data requirements, with the aim of establishing their feasibility for such forensic analysis. KNN demonstrated better accuracy overall for gender classification achieving 0.91 accuracy, while Extreme Gradient Boosting (XGBoost) outperformed other methods for stature estimation with MAE of 4.10 cm and RMSE of 5.42 cm, however varying strengths and weaknesses of each classifier for gender classification and stature estimation were observed. Our results suggest that the strongest performing traditional ML methods offer a feasible solution for such analysis, however expanding the training dataset to incorporate more footprint examples of more varying quality and depicting a greater diversity of population is likely necessary to fully realise a workable end-to-end solution. Such datasets may also open the door to more advanced deep learning methods.

Objective: Automatic diagnosis of psychiatric disorders such as bipolar disorder (BD) through machine learning techniques has attracted substantial attention from psychiatric and artificial intelligence communities. These approaches mostly rely on various biomarkers extracted from electroencephalogram (EEG) or magnetic resonance imaging (MRI)/functional MRI (fMRI) data. In this paper, we provide an updated overview of existing machine learning-based methods for bipolar disorder (BD) diagnosis using MRI and EEG data. Method : This study is a short non-systematic review with the aim of describing the current situation in automatic diagnosis of BD using machine learning methods. Therefore, an appropriate literature search was conducted via relevant keywords for original EEG/MRI studies on distinguishing BD from other conditions, particularly from healthy peers, in PubMed, Web of Science, and Google Scholar databases. Results: We reviewed 26 studies, including 10 EEG studies and 16 MRI studies (including structural and functional MRI), that used traditional machine learning methods and deep learning algorithms to automatically detect BD. The reported accuracies for EEG studies is about 90%, while the reported accuracies for MRI studies remains below the minimum level for clinical relevance, i.e. about 80% of the classification outcome for traditional machine learning methods. However, deep learning techniques have generally achieved accuracies higher than 95%. Conclusion: Research utilizing machine learning applied to EEG signals and brain images has provided proof of concept for how this innovative technique can help psychiatrists distinguish BD patients from healthy people. However, the results have been somewhat contradictory and we must keep away from excessive optimistic interpretations of the findings. Much progress is still needed to reach the level of clinical practice in this field.

Socio-economic indicators are important statistical data used to monitor and evaluate the development of economy and society. They are of great value to policy makers of government, organizations and enterprises. Previous methods to measure socio-economic conditions are through data collecting or large-scale surveys by manpower. Over recent years, with the quick development of Internet, a huge amount of online text becomes available and contains clues of socio-economic indicators. As a result, rule-based methods and traditional machine learning methods are emerging to extract indicators more effectively but they require too much prior domain knowledge and feature engineering. Recently, deep learning approaches are dominating in Natural Language Processing (NLP) and formulating NLP tasks as machine reading comprehension (MRC) problems has been proven to be effective. Therefore, we propose a RoBERTa-based model that treats indicator extraction as a question answering (QA) task. By answering questions customized for indicator elements which are the components of the indicator, it transforms extracting indicator elements to identifying and extracting answer spans from the given contexts. Experiments show that it outperforms other deep learning baselines.

Heart signatures: Open-set person identification based on cardiac radar signals

Purpose:There has been burgeoning interest in applying machine learning methods for predicting radiotherapy outcomes. However, the imbalanced ratio of a large number of variables to a limited sample size in radiation oncology constitutes a major challenge. Therefore, dimensionality reduction methods can be a key to success. The study investigates and contrasts the application of traditional machine learning methods and deep learning approaches for outcome modeling in radiotherapy. In particular, new joint architectures based on variational autoencoder (VAE) for dimensionality reduction are presented and their application is demonstrated for the prediction of lung radiation pneumonitis (RP) from a large-scale heterogeneous dataset.Methods:A large-scale heterogeneous dataset containing a pool of 230 variables including clinical factors (e.g., dose, KPS, stage) and biomarkers (e.g., single nucleotide polymorphisms (SNPs), cytokines and micro-RNAs) in a population of 106 non-small cell lung cancer (NSCLC) patients who received radiotherapy was used for modeling RP. 22 patients had grade 2 or higher RP. Four methods were investigated, including feature selection (case A) and feature extraction (case B) with traditional machine learning methods, a VAE-MLP joint architecture (case C) with deep learning and lastly, the combination of feature selection and joint-architecture (case D). For feature selection, Random forest (RF), Support Vector Machine (SVM) and multi-layer perceptron (MLP) were implemented to select relevant features. Specifically, each method was run for multiple times to rank features within several cross-validated (CV) resampled sets. A collection of ranking lists were then aggregated by top 5% and Kemeny graph methods to identify the final ranking for prediction. A synthetic minority oversampling technique (SMOTE) was applied to correct for class imbalance during this process. For deep learning, a VAE-MLP joint architecture where a VAE aimed for dimensionality reduction and an MLP aimed for classification was developed. In this architecture, reconstruction loss and prediction loss were combined into a single loss function to realize simultaneous training and weights were assigned to different classes to mitigate class imbalance. To evaluate the prediction performance and conduct comparisons, the area under receiver operating characteristic (ROC) curves (AUCs) were performed for nested CVs for both handcrafted feature selections and the deep learning approach. The significance of differences in AUCs was assessed using the DeLong test of U-statistics.Results:An MLP-based method using weight pruning (WP) feature selection yielded the best performance among the different hand-crafted feature selection methods (case A), reaching an AUC of 0.804 (95% CI: 0.761–0.823) with 29 top features. A VAE-MLP joint architecture (case C) achieved a comparable but slightly lower AUC of 0.781 (95% CI: 0.737–0.808) with the size of latent dimension being 2. The combination of handcrafted features (case A) and latent representation (case D) achieved a significant AUC improvement of 0.831 (95% CI: 0.805–0.863) with 22 features (p-value = 0.000642 compared with handcrafted features only (Case A) and p-value=0.000453 compared to VAE alone (Case C)) with an MLP classifier.Conclusion:The potential for combination of traditional machine learning methods and deep learning VAE techniques has been demonstrated for dealing with limited datasets in modeling radiotherapy toxicities. Specifically, latent variables from a VAE-MLP joint architecture are able to complement handcrafted features for the prediction of RP and improve prediction over either method alone.

Evolutionary sampling: A novel way of machine learning within a probabilistic framework

Recently, deep learning has become a promising technique for constructing gesture recognition classifiers from surface electromyography (sEMG) signals in human–computer interaction. In this paper, we propose a gesture recognition method with sEMG signals based on a deep multi-parallel convolutional neural network (CNN), which solves the problem that traditional machine learning methods may lose too much useful information during feature extraction. CNNs provide an efficient way to constrain the complexity of feedforward neural networks by weight sharing and restriction to local connections. Sophisticated feature extraction is to be avoided and hand gestures are to be classified directly. A multi-parallel and multi-convolution layer convolution structure is proposed to classify hand gestures. Experiment results show that in comparison with five traditional machine learning methods, the proposed method could achieve higher accuracy.

Malicious software also known as "Malware" is software that uses legitimate instructions or code to perform malicious actions. Malware poses a major threat for computer security and information security in general. Over the years, malware has evolved to the point that a single malware specimen can have hundreds or maybe thousands of variants using polymorphic and metamorphic transformation to change the signature of the malware variant in propagation. The common signature-based malware detection methods are no longer robust to detect these variants due to the alteration of code. Static analysis is required to obtain these signatures and anti-virus companies are required to propagate these signature updates to their software. A faster detection method is needed to compensate the exponentially increasing number of malware variants. Machine learning is a trending approach for malware detection. This removes the need to use signature-based detection and is also faster. Software companies do not need to propagate signatures as often. Machine learning algorithms using opcode sequences can recognise patterns in the malicious code that are not present in common signatures and classify them more efficiently. Therefore, a machine learning approach for malware detection should be adopted for faster and more efficient detection. Most research in malware detection using machine learning used static attributes such as network connections, processes spawned, hashes, etc., that were not that robust to changes. In this paper we introduced our novel approach in using trigrams and PE file attributes as features for malware detection. We took a text mining approach to make our detection method more robust to polymorphism and metamorphism. The instruction sequence for critical code in malware on the assembly level is basically the same across malware families. We used opcode trigram sequences as the main feature for our machine learning algorithm. We used Support Vector Machine(SVM) as our classifying algorithm which is a discriminative classifier model that gives a definite decision whether the predicted outcome belongs to the learned class or not. The above shows our novel approach that enabled us to get higher detection rates with less features.

Facial emotion recognition (FER) is a topic that has gained interest over the years for its role in bridging the gap between Human and Machine interactions. This study explores the potential of real time FER modelling, to be integrated in a closed loop system, to help in treatment of children suffering from Autism Spectrum Disorder (ASD). The aim of this study is to show the differences between implementing Traditional machine learning and Deep learning approaches for FER modelling. Two classification approaches were taken, the first approach was based on classic machine learning techniques using Histogram of Oriented Gradients (HOG) for feature extraction, with a k-Nearest Neighbor and a Support Vector Machine model as classifiers. The second approach uses Transfer Learning based on the popular “Alex Net” Neural Network architecture. The performance of the approaches was based on the accuracy of randomly selected validation sets after training on random training sets of the Oulu-CASIA database. The data analyzed shows that traditional machine learning methods are as effective as deep neural net models and are a good compromise between accuracy, extracted features, computational speed and costs.

With the development of computer technology, electronic engineering, statistics and other disciplines, artificial intelligence (AI) has made breakthroughs in the medical field, and intelligent diagnosis and treatment has become an important development trend. The core methodological research of AI focuses on machine learning, and machine learning on clinical medicine is the key technology for using medical big data. Lung cancer is the malignant tumor with the highest morbidity and mortality in the world. Early CT screening can reduce the mortality of lung cancer patients. However, there are currently a large number of screenings, a large workload of physicians, and a high rate of missed diagnosis. This article explores the use of artificial intelligence (AI) screening for early lung cancer, and discusses the clinical significance of this method in the diagnosis of lung nodules. In lung cancer diagnosis, a lot of work has been done in computer-aided diagnosis, including traditional image processing methods, traditional machine learning methods, deep learning methods, and convolutional neural networks. This article compares and analyzes the output results of the Tumar Deep-Dimensional Lung Nodule Intelligent Diagnosis System and the diagnosis results of the chest C-images of the two-person reading patient, and studies the important value of artificial intelligence in the early screening of lung cancer.